Charles van de mark



C. VAN DE MARK.

Cooking Stove.

Patehted July 30, 1867.

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Letters Patent No. 67,383, dated July 30, 1867.

IMPROVEMENT IN COOKING-STOVBS.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, CHARLES VAN DE Maux, of Phelps, in the county of Ontario, and State of New York, have invented a new and useful Improvement in Cooking-Stove and apparatus; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making part of this specification- Figure 1 being a top view of a cooking-stove provided with my improvement, 4together with a horizontal section ofthe improved boilers or heating-vessels connected therewith.

Figure 2 a vertical section of the same in a plane indicated by the line :c x, iig. 1.

Figures 3 and 4, bottom views of two constructions of the boilers or heating-vessels.

Like letters designate corresponding parts in all of the igurcs.

My improvement belongs both to the construction of the stove itself and to a boiler or equivalent vessel for heating water or other liquid, or for cooking, as applied to the improved stove.

In the drawings, representing a. stove provided with my improvement, the fire-chamber A, heating-chamber B, and oven C may be of ordinary construction. v The only features oi' the stove itself belonging especially to my invention are, rst, a transverse partition, G, separating the {ire-chamber from the heating-chamber, and provided with a valve or valves, a, by which direct communication between said chambers may be opened or closed at pleasure; and, second, a curved opening, b, through the top plate ofthe stove, just behind each fronthoiler opening c and the said division plate. These openings are as close to the boiler openings as they can conveniently be, and have the partition between them, and they are properly concentric with the boiler-openings.

he partition G also curves with the boiler-openings between the same and the openings bb. The boilei or heating-vessel D is somewhat conical, or smaller' at the bottom than at the top, and fits down into aboileropening, c, in the top of the stove, as usual. Around this there is a case, E, which may be cylindrical, so as to leave a space, d, inside thereof around the boiler, substantially as shown in iig. 2. It extends down far enough to rest on the top of the stove, when the boiler is inserted to the proper extent in the boiler-opening. The space d around the boiler, inside of the oase E, serves as a ilue space, in which the draught and products of combustion may circulate, in order more rapidly to heat the contents of thc boiler. For this purpose there is a notch or opening, z', at the side of each front opening c of the stove, through which the draught may rise from the fire-chamber below, as shown by arrows in fig. l. There is a radial or cross-division plate, 7L, between the case and body of each boiler D, and when the boiler is pnt on the stove, it is so placed that this division plato will 'rest between the notch or opening z' of the stove and the curved opening b at the rear of the boileropening. By this arrangement, the draught, after it rises up through the opening z', is caused to pass all around the boiler through the space d, and then descend through the opening b into the chamber B of the stove. A modification of the construction ot" the boiler D is shown in fig. 4, which consists in covering the space d at the bottom by a plate, g, except that part which cornes directly over the'openings z' and b. This renders the boiler more cleanly in use, by not dropping soot and not blacking the top ot' the stove around the boiler-openings. The whole arrangement of parts is shown in fig. 1.

When it is desired to concentrate the heat around one of the boilers, let the valve or valves a of the partition G be closed, so as to compel the passage ot' tle draught up around the boiler, and then down through thc opening b. Thus not only is the direct action of the heat upon the bottom of the boiler obtained, but the full effect of the draught around the sides is secured; or, if a gentle heat only is desired to act on the boiler, by opening a valve or valves, a, of the partition G, the draught passes directly back without passing up through the space around the boiler. And if more than one boiler D is used, and there is a valve, a, for each boiler, by opening said valves, more or less,ir1 relation to each other, the relative amount of heat directed to-eacli boiler may be regulated at pleasure. `[l'he shaft m of each valve a may be so arranged as to turn and hold the valve at any anglcbso as to direct the heat, if desired, upward, against any boiler or cooking utensil in one of the krear boiler-openings IZ, as indicated by one position in red lines, fig. 2. Instead ot' locating the opening z' close to the opening, and employing the division plate l between them, the opening maybe opposite to the opening Z1 or in front ot' the boiler, so as to allow the draught to pass both ways therefrom around the boiler, from front to rca'r. For a long boiler, covering two boiler-openings, I make two round projections, fitting down into the opcnings,.each end having the case E around it; and iii the middle, between the downward projections, I make a. chamber in the bottom, raised above the stove plate, to furnish passages for the draught as it rises from the fire-chamber or chambers into the circulating spaces around the ends ofthe boiler; or a depression may be made in the top plate of the stove, between the front boiler-openings, to furnish the draught passages under the middle of the boiler. I

Vhat I claimY as my invention, and desire to secure by Letters Patent, 1s The openings b b in the top plate ofthe stove, in combination with the cross-partition G and valve or valves a, for-'the purpose herein specified.

I also claim the notches or openings z' z' at the sides of the front boilenopenings, in combination with the openings b 6, substantially as und for the purpose herein specified.

I Ialso claim the combination of the boiler or heater D and the stove, each constructed substantially as described, and both operating together; substantiaily as and for the purpose herein specified.

I also claim the division plate zfeither with or Without the plate gfon-the boiler, for the purpose specified. l y CHARLES VAN DE MARK. Witnesses:

E. J. BROWN, J. S. Bnowm 

